[PATCH] gpu: dc: fix enum conversion in display_mode_vba

[Wei Yongjun]

On 2022/9/19 9:41, Zeng Heng wrote:
> Fix below compile warning when open enum-conversion
> option check (compiled with -Wenum-conversion):
> 
> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:
> In function ‘dml20_ModeSupportAndSystemConfigurationFull’:
> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3900:44:
> error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
>  3900 |     locals->ODMCombineEnablePerState[i][k] = false;
>       |                                            ^
> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3904:46:
> error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
>  3904 |       locals->ODMCombineEnablePerState[i][k] = true;
>       |                                              ^
> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3907:46:
> error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
>  3907 |       locals->ODMCombineEnablePerState[i][k] = true;
>       |                                              ^
> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3960:45:
> error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
>  3960 |      locals->ODMCombineEnablePerState[i][k] = false;
> 
> Use the proper value from the right enumerated type,
> dm_odm_combine_mode_disabled & dm_odm_combine_mode_2to1,
> so there is no more implicit conversion.
> 
> The numerical values of dm_odm_combine_mode_disabled
> & false and dm_odm_combine_mode_2to1 & true
> happen to be the same, so there is no change in
> behavior.
> 

LGTM